Locomotive-wheel-blocking device



JJ. HAUCK AND W. H. WHYTE.

LocoMoTlvE WHEEL BLocKlNG DEVICE.

APPLICATION FILED NOV. 28, i919.

Patented 001:. 19,1920.

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, UNITED STATE-s JOSEPH J. HAUCK AND WILLIAM H. wHv'TE, or CALIIHET, MICHIGAN.

` i'f LocoMorIvrrWHEEL-BLOCIIING iinvrcrz.k

To all whom; t may concern.'

Be itknown that we,"JosnI H United States, Vresiding at Calumet",` inl/the county of Houghton and State of..M1ch1- gan, have invented certain new and useful y the chock block by screw bolts 7 or the like.

Improvements in Locomotive-Wheel-Blocking Devices; and we do declare the follow-y ing to be a full, clear, and exact description of the invention,-such as will enabley others skilled in the 'art togwhich it apperf tains to make and use the same.

rlhis invention relates to rimprovements in `wheel chocks for blocking locomotives.

The primary object is to provide a wheel chock including a pair of blocks so connected as to be normally retained at a maximum point of separation and adapted to be placed in operative position without necessitating raising'the wheel to be chocked.

With the above and other objectsy in view the invention consists of certain novel features of construction and the combination and arrangement of parts as will be more fully described and claimed.

We attain these objects by the construction illustrated in theaccompanying drawings, in which- Figure 1 is a top plan viewof the wheel chock;

'Fig 2, is a side` elevation, with parts in section; and f Fig. 3, a detail section of one of the blocks.

Similar numerals of reference designatel U-shape and normally retaining the blocks at the maximum point of separation. though other means for compressingk the spring may be employedfwe preferably proj vide a bar loosely carried by the spring arms 3 and co-acting with a suitable lever 4 or the like, to perform said functionf rlhe chock blocks 1 are formed of any suitable metal and are provided with inwardly tapered upper faces for engaging the periphery of a wheel. The lower faces of the tially rigid unitary structure to vbe applied blocks 1 are provided with transverse vteeth J. HAUCKy and WILLIAM H. WHYTE, citizens of the f tion.

` ,Y specification of' Le;ters'raient'.` ,Patented'octnlg1920. K Application niednovembevrzs, '1919; semaines-11,026. d f.

5 adapted to bitev or n gripthe rail when in operative position. f

r While theblock may be otherwise connectn ed, we preferably employ a substantially U` shaped spring metal frame 2`whose arms y3 yare suitably secured to the outer faces of The natural tendency of the .rrnsis `to sep'ai rate to a certain degree and thereby retain' the' blocks in'their maximum spaced rela- In order to retain the blocksfspaced in approximately the proper relationl for engaging a wheel, we haveprovided each arm 6 with a slot S at a point adjacent the chock block 1,]said slots being adapted to receive a bar 9, one end'of which is passedthrough n one' slot and* retained` therein byy suitable means, while the other end is passed through the otherslot and provided-with a cani lever 4. Fig. ,1 shows the cam lever in operative or locking position Vand when they lever is rotated 180O it isobvious thatthe arms are Vallowed to expand, and thisr expanded position may be varied by adjusting a pin 11 in the apertures 12in the bar at the end opposite the lever.

The pin 11 is formed with a shoulder 13 to i prevent it passing entirely through one of the `apertures 12 and is permanently carried by the adjacent arm through the chain` connection 14 which is suitably secured to the v arm andpin. v

In operation, the wheel chock having previously been adjusted to the approximate size of the wheel, the device is moved laterally taking under the wheel rim and then the cam lever is turned to the position indicated-in Fig. 1, thereby positively locking the wheel against'movement. yIt is very ap- I parentv that this structure eliminates the necessity of lifting the wheel to be chocked. From the foregoing description taken in connection with the yaccompanying drawings, the construction'and operation of the invention will be readily understoodwithout requiring a more extended explanation.

Various changes 'in the form proportion and minor details of construction may be y resorted to without departing from the principle or sacrificing any of the advantages of the claimed invention.

Ve claim; l p 1. A wheel chock comprising a substanto a wheel from one of its sides and including a substantially U-shaped frame to be lpoi sitioned horizontally, opposed chock blocks at the ends of the frame and means for moving said blocks relatively to each other.

2. A wheel chock comprising a pair of chock blocks, a pair of connected supporting arms connected at their ends to said'blocks and projecting horizontally and laterally therefrom in the same direction, the opposite sides of the blocks being free. and unconnected to permit of the ready application of the device to the wheel from one side Aof the latter, and means fornioving one arm relative to the other tovary the space between the blocks. l 1

A wheel chock comprising a substantially U-shaped spring member, opposed chock blocks carried by the arms of said spring member, means for moving one arm relatively to the other to vary the space between the blocks. p

4f. ln a wheel chock, a pair of chock blocks to receive a wheel therebetween, a resilient carrier for said blocks to yieldably retain them in their maximum separated positions, and means for adjusting the carrier and moving and locking the said Iblocks into ,enga gement with a wheel.

5. In a wheel chock, a pair of chock blocks to receive a wheel therebetween, a substantially U-shaped spring connecting sai d blocks to normally separate rthem to the maximum point, and means for compressing said spring to move and lock the blocks into eny gagenient with a wheel. v

Y cured to said blocks, a bar extending from one arm oi said spring and having its other end slidable through the other arm, and a cam leverv mounted on the free end or" said bar engaging the outer face of the adjacent arm and adapted to-be operatecltocompress said spring to move andV lock the blocks into engagement with a wheel. Y

8. In a wheel chock, a pair of chock blocks to receive a'wneel therebetween, a substan-` tially VU-shaped spring having its arms ser cured to said blocks, said arms having a pair of longitudinally alined openings,'a bar connecting said arnis and having-its ends lprojecting,through said openings, one end ein'. said bar having series or apertures, a

4pin adapted tor receptionr inA one ,of said apertures, a cani lever'carried by the other end of said bar and adaptedto be operated to compress'the arms and move the blocks into engagement with a wheel.

in testimony whereoi we have hereunto set our hands. i

JOSEPH J. HAUCK. WILLIAM I-I. WHYTE. 

